2 papers
math.FA2026
The best Musielak-Orlicz approximation by linear subspaces
Juan Costa Ponce, Sergio Favier, Fabián Levis
We study best modular approximation in Musielak-Orlicz spaces. A geometric classification near the origin of Orlicz functions is introduced to isolate weighted -like behavior.…
math.RA2023
One sided Star and Core orthogonality of matrices
D. E. Ferreyra, F. E. Levis, Saroj B. Malik +1
We investigate two one-sided orthogonalities of matrices, the first of which is left (right) -orthogonality for rectangular matrices and the other is left (right) core-orthogona…